Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 â 58 discovery reports First survey (autumn) Horizontal distribution of temperature and salinity On the first survey the lowest surface-temperatures were found in the south of the region, off Pater- noster Point (320 40' S.) where the lowest recorded was 12-5° C. This cold water, although we have no direct evidence, was probably confined to a fairly narrow coastal strip. In the vicinity of Cape of Good Hope the thermograph readings reached a value of 170 C. only 3 miles offshore, and so there is little likelihood t
Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 â 58 discovery reports First survey (autumn) Horizontal distribution of temperature and salinity On the first survey the lowest surface-temperatures were found in the south of the region, off Pater- noster Point (320 40' S.) where the lowest recorded was 12-5° C. This cold water, although we have no direct evidence, was probably confined to a fairly narrow coastal strip. In the vicinity of Cape of Good Hope the thermograph readings reached a value of 170 C. only 3 miles offshore, and so there is little likelihood that the cool water extended east of this point. (I 25- sL- * ** 2 i: *5 £h ?k S SJ 12-5* '« #5 ** 5-o |f §5 £* 5|io-o5 7-5 r 3 0 Co **- 1* fO 5-0, (A (A \f> >/! 2-5 0 0*00 , A 11* -2 Fig. 9. Photograph of the annotated distant-reading thermograph chart for Saturday, 11 March 1950. Vertical scale, temperature in ° C. Northwards, towards the Orange river mouth, the extent of cool water became more restricted, and in 290 S. the warmer oceanic water penetrated more closely to the coast. The outflow of fresh water from the Orange river can be detected over a wide area. The surface-salinities at stations in the neigh- bourhood were vastly reduced (32-39 0 at WS 1001) but the reduction affected only a thin surface- layer, and 50 miles offshore at WS 1000 the surface-salinity was that of the normal sea-water of the region. To the west of station WS 998 the boundary with the warm oceanic water was sharply
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